深ふか爪づめ

noun, noun or participle which takes 'suru'

cutting a nail too short; cutting to the quick

Refers to trimming a fingernail or toenail so short that it exposes the sensitive skin underneath, often causing pain. Can be used as a noun or with する.

• 深ふか爪づめをすると痛いたいですよ。

  It hurts if you cut your nails too short.

• 彼かれはいつも深ふか爪づめしてしまう。

  He always ends up cutting his nails too close.

noun

deep-set nail; nail with a deep quick

Describes a nail where the quick (the sensitive part) extends far forward, making it easy to cut too short. This is a noun-only sense.

• 深ふか爪づめの人ひとはネイルケアに気きをつけたほうがいい。

  People with deep-set nails should be careful with nail care.